As I'm thinking of updating my GM setup from 0.166 to haynor666's 32-build 0.196 (keeping Windows XP32 SP3), I'm wondering why there is a difference in the switchres output.
For instance Andro Dunos (NeoGeo):
GM 0.166 (switchres 15i): 320x224@59.19 > 320x224@59.19
GM 0.196 (switchres 17h): 304x224@59.1856 > 304x224@59.1856
Why is there a difference between the switchres output? I was used to the more 'square' image of 320x224, where 304x224 produces a bit more 'stretched' image.
Also, Ibara in GM 0.166 runs at about 97.13% and in GM 0.196 the same game(rom) runs at about 99.98%. The latter is better of course, but why is there a speed improvement (also for all other Cave games that I tested)?
I'm not sure yet to update GM from 0.166 to 0.196, I have a set of about 1025 games and I would need to update 350 in order to play them in GM 0.196. I don't think I can do that in a quick way, considering the gap of 30 mame releases.